Page 7 - PROGRAMMING IN C_Neat

 Example:
 Program to add two numbers.
 Include Section
#include <stdio.h>
main()
{  main() Section

int a, b, sum;  Local Declaration Section

scanf(“%d %d”, &a, &b);  Statement Section
sum = a + b;
printf(“Sum = %d”, sum);
}
_______________________________________________________________________________________

7. Explain the steps involved in executing a C program. *

Execution of C Program:
1. Creating the Program:
 The program should be typed in the Turbo C editor and saved.
 This program is called source program.
 Source Program – General Form:

filename.c
 Example: Sample.c

2. Compiling the Program:
 Compilation is the process of converting the source program into machine language program (object
program).
 The source program should be compiled using the Compile option in the Turbo C editor.
 During compilation, source program is converted into object program.
 Object Program - General Form:

filename.obj
 Example: Sample.obj

3. Linking and Running the Program:
 Linking is the process of connecting header files with the program.
 Linking converts object program into executable program.
 Executable Program – General Form:

filename.exe
 Example: Sample.exe

 Executable program should be run using the Run option in the Turbo C editor.